Terminal
Error: listen EADDRINUSE: address already in use :::3000
- What it means
- Another program is already using port 3000, so your app can't start there.
- Likely causes
- An old copy of your app is still running in another terminal.
- Another app on your computer uses port 3000.
- Prevention
- Stop the app (Ctrl + C) when you finish.
Copy for your agent
Find what's using port 3000, tell me what it is, and stop it if it's an old copy of my app.
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